Scott Quigg to face Paulus Ambunda

Junior featherweight titleholder Scott Quigg will make the fourth defense of his 122-pound belt when he meets former bantamweight titleholder Paulus Ambunda on Sept. 13 at the Phones 4u Arena in Manchester, England, Matchroom Boxing promoter Eddie Hearn announced on Tuesday.

The date for Quigg's defense has been on the books for a month, but the opponent was finalized Tuesday.

Quigg, 25, of England, is coming off a dominant second-round knockout win against Tshifhiwa Munyai on April 19.

Ambunda, 33, of Namibia, won a bantamweight world title by outpointing Thailand's Pungluang Sor Singyu in Namibia in March 2013. He lost the title in his first defense, getting outpointed by Japan's Tomoki Kameda in the Philippines last August. In May, Ambunda moved up to junior featherweight and won his debut in the weight class.

The co-feature will pit lightweight Anthony Crolla (28-4-1, 11 KOs), 27, who will be fighting in his hometown, against Gamaliel Diaz (38-11-2, 17 KOs) in a scheduled 12-round bout.

Crolla, 4-0-1 in his last five fights, is coming off a 10th-round knockout of countryman John Murray on April 19.

Diaz, 33, of Mexico, won a junior lightweight world title in upset fashion in October 2012, outpointing Japan's Takahiro Ao in Tokyo. Diaz lost the title in his first defense, suffering a ninth-round knockout to Takashi Miura, also in Tokyo.

"We are excited to be back in Manchester in September for another big night," Hearn said. "Scott and Anthony are becoming regular fixtures at the arena with great support and both are in major fights on Sept. 13. Scott is in scintillating form and ready to stamp his authority on the division, while Anthony has another tough fight against former world champ Diaz, who mixed with the likes of Robert Guerrero, Jorge Linares and Humberto Soto before traveling to Japan to win the WBC title."